# Garbled MathJax in some old questions [duplicate]

In several old questions/answers I have seen in MathJax the combination \\, where it obviously should be \, and also \* where it should be just * - the result is a badly distorted formula, torn into confusingly displaced pieces in the first case, and just a red $\*$ in the second case.

I have just corrected it for https://mathoverflow.net/a/104701/41291, and I have done this at least twice before, so I now suspect there might be some bug doing this.

On the other hand this seemingly only occurs in relatively old posts, so maybe there was a bug which is extinguished by now.

Is this a known issue?

## marked as duplicate by András Bátkai, Jan-Christoph Schlage-Puchta, Community♦Mar 24 '17 at 5:25

The system used to break \, which required entering a double \\ for $\rm\LaTeX$ commands to work. This was resolved a long long time ago.